View of a Gilpin Tramway Company work train led by locomotive no. 4. Lettering on the locomotive reads: "G. 4 T." and "4." The engineer and fireman stand in the door and window of the locomotive. A well dressed man in a suit, tie and hat, sits on the edge of the coal filled tender. Workmen stand on the front of the locomotive and sit and stand on two flat cars loaded with large rocks or boulders. A work car with a canvas side and chimney is on the end of the train.